介源镝(III)配合物与向列液晶混合物的热力学和光学性质

IF 0.3 Q4 CRYSTALLOGRAPHY

Liquid Crystals and their Application Pub Date : 2021-06-29 DOI:10.18083/lcappl.2021.2.45

M. E. Karyakin, A. Kovshik, A. Krupin, L. Dobrun, A. Knyazev, Y. Galyametdinov

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引用次数: 0

摘要

在这方面，一个实际重要的任务是获得在宽温度范围内表现出向列介晶性的含镧系元素的液晶系统。因此，在这项工作中，我们已经证明了基于合成的顺磁性液晶5,5'-二十七烷基-2,2'-联吡啶镝（III）与液晶1-（4-氟苯基）-3-（4-（4-丙基环己基）苯基）丙烷-1,3-二酮的络合物产生均匀向列混合物的可能性。最新的具有较宽的中间相范围和较低的结晶温度。利用偏光显微镜和差示扫描量热法的数据构建了所研究混合物的相图。研究了它们的热力学和光学特性（折射率、光学各向异性、取向有序度的主要值）。

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Thermodynamic and Optical Properties of Mixtures Based on Mesogenic Dysprosium (III) Complex and Nematic Liquid Crystal

In this regard, a practically important task is to obtain lanthanide-containing liquid crystal systems exhibiting nematic mesomorphism in a wide temperature range. Therefore, in this work, we have demonstrated the possibility of creating homogeneous nematic mixtures based on the synthesized paramagnetic liquid crystal 5,5'-diheptadecyl-2,2'-bipyridine dysprosium (III) complex with liquid crystal 1-(4-fluorophenyl)-3-(4-(4-propylcyclohexyl)phe-nyl)propane-1,3-dione. The latest possesses wide mesophase range and low crystallization temperature. The phase diagrams of the studied mixtures were constructed using the data of polarizing optical microscopy and differential scanning calorimetry. Their thermodynamic and optical characteristics (main values of refractive indices, optical anisotropy, degree of orientational order) have been studied.

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来源期刊

Liquid Crystals and their Application CRYSTALLOGRAPHY-

CiteScore

1.30

自引率

40.00%

发文量

期刊介绍： The Journal presents the following main directions of creation/construction, study and application of self-assembled materials: SYNTHESIS, STRUCTURE, PROPERTIES, MEDICINE, BIOLOGY, NANOTECHNOLOGY, SENSORS, PRACTICAL APPLICATION and INFORMATION. The journal is addressed to researchers, lecturers, university students, engineers. The publisher of the journal is the Nanomaterials Research Institute of "Ivanovo State University".